Day 56: JEE Mains Physics
5 questions. Try each one first, then open its answer.
Question 1
Dual Nature of Radiation and Matter. Asked 3 times: 2021 Paper 15*, 26 Jun 2022*, 29 Jan 2024 (* = numbers or wording changed that year) See all 3 times it was asked
13The de-Broglie wavelength of an electron is the same as that of a photon. If velocity of electron is of the velocity of light, then the ratio of K.E. of electron and K.E. of photon will be:Tap an option to check your answer.
Question 2
Mechanical Properties of Solids. Asked 3 times: 25 Jul 2022*, 15 Apr 2023*, 29 Jan 2024 (* = numbers or wording changed that year) See all 3 times it was asked
103A wire of length and radius is clamped at one end. If its other end is pulled by a force F, its length increases by . If the radius of the wire and the applied force both are reduced to half of their original values keeping original length constant, the increase in length will become.Tap an option to check your answer.
Question 3
Electrostatics. Asked 3 times: 2021 Paper 11*, 27 Jul 2022*, 13 Apr 2023 (* = numbers or wording changed that year) See all 3 times it was asked
107A charge is divided into two parts and placed at distance so that the repulsive force between them is maximum. The charges of the two parts are:Tap an option to check your answer.
Question 4
Alternating Current. Asked 3 times: 2021 Paper 21*, 26 Jul 2022, 30 Jan 2023 (* = numbers or wording changed that year) See all 3 times it was asked
10In a series LR circuit with , power factor is . If a capacitor of capacitance with is added to the circuit the power factor becomes . The ratio of to will be:Tap an option to check your answer.
Question 5
Oscillations. Asked 3 times: 2021 Paper 2, 2021 Paper 26, 26 Jul 2022 See all 3 times it was asked
12When a particle executes simple Harmonic motion, the nature of graph of velocity as function of displacement will be:Tap an option to check your answer.